Solving Quadratics (Day 2)

Lesson Prep

Lesson Details

• Duration: 50 minutes

• Learning Goal: Explore quadratics not equal to zero and compare advantages/disadvantages between factoring and graphing methods.

Answer Keys

• Link to Answer Keys

Classwork

• Estimation 180 – Day 180 (Andrew Stadel)

• Warm Up (New Visions)

• Worked Examples Slides (New Visions)

• Practice

• Spiraling Practice

Standards

Common Core

• HSA.REI.B.4.B – Solve quadratic equations by inspection (e.g., for x² = 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b.

TEKS

• A.8(A) – solve quadratic equations having real solutions by factoring, taking square roots, completing the square, and applying the quadratic formula